公开(公告)号：US4516924A

公开(公告)日：1985-05-14

申请号：US491159

申请日：1983-05-04

Applicant: David L. Rawlings

Inventor： David L. Rawlings

IPC: B29C33/34 ,  B29C41/04 ,  B29C41/50 ,  B29C5/04 ,  B29J1/00

CPC classification number: B29C41/50 ,  B29C33/34 ,  B29C41/045 ,  B29K2105/0002 ,  B29L2011/0041 ,  Y10S425/808

Abstract: A device for the centrifugal casting of articles in a rotatable polymerization column which includes retaining means disposed in the lower end of the column for communicating with a mold therein whereby the rotational speed of said mold and other vertically arranged molds above it are made substantially synchronous with the rotational speed of the column.

Abstract translation: 一种用于在可旋转聚合柱中离心铸造制品的装置，其包括设置在柱的下端中的保持装置，用于与模具连通，由此使模具和其上的垂直布置的模具的转速基本上与 柱的转速。

公开(公告)号：US06411487B1

公开(公告)日：2002-06-25

申请号：US09484072

申请日：2000-01-18

Applicant: David L. Rawlings ,  Prem G. Chandran ,  Israel Moskovitch

Inventor： David L. Rawlings ,  Prem G. Chandran ,  Israel Moskovitch

IPC: H02H100

CPC classification number: H01R24/48 ,  H01R2103/00 ,  H01T4/08 ,  H02H7/24

Abstract: A coaxial surge protector includes a housing in which is situated a transmission line in the form of a two-sided printed circuit board. The surge protector includes input and output signal connectors mounted on a housing and connected to the transmission line, and a gas discharge tube electrically coupled between the transmission line and circuit ground. A thermally activated shunt assembly is thermally coupled to the gas discharge tube and senses when the gas discharge tube is in an overheating condition. Upon such condition, the shunt assembly provides an electrically conductive shunt in parallel with the gas discharge tube to divert current flowing through the gas discharge tube to flow through the shunt assembly to ground in order to minimize further overheating of the gas discharge tube.

Abstract translation: 同轴电涌保护器包括壳体，其中位于双面印刷电路板形式的传输线。 浪涌保护器包括安装在壳体上并连接到传输线的输入和输出信号连接器，以及电耦合在传输线路和电路接地之间的气体放电管。 热活化分路组件热耦合到气体放电管并感测气体放电管何时处于过热状态。 在这种情况下，分路组件提供与气体放电管并联的导电分路，以转移流过气体放电管的电流，以流过分流组件接地，以便使气体放电管的进一步过热最小化。

公开(公告)号：US4680149A

公开(公告)日：1987-07-14

申请号：US865217

申请日：1986-05-19

Applicant: David L. Rawlings ,  Robert E. Glick ,  Robert Chang

Inventor： David L. Rawlings ,  Robert E. Glick ,  Robert Chang

IPC: B29C33/00 ,  B29C41/00 ,  B29C41/04 ,  B29C41/38 ,  B29C41/40 ,  B29D11/00 ,  B29L11/00 ,  C08F290/06

CPC classification number: B29D11/00057 ,  B29C41/003 ,  B29C41/045 ,  B29C41/38 ,  C08F290/062 ,  B29C33/0038 ,  Y10S425/808

Abstract: An improved mold apparatus and spin casting method adapted for use in the molding of precisely configured articles, e.g., a contact lens, from a liquid polymerizable reaction mixture containing at least one volatile component is disclosed. Loss of this volatile component from the reaction mixture is prevented by providing a separate reservoir filled with a liquid volatile substance which volatilizes and fills the space above the liquid polymerization mixture.

Abstract translation: 公开了一种改进的模具装置和旋转铸造方法，其适用于从含有至少一种挥发性组分的液体可聚合反应混合物模制精确配制的制品例如隐形眼镜。 通过提供填充有挥发并填充液体聚合混合物上方的空间的液体挥发物质的单独的储存器来防止来自反应混合物的挥发性组分的损失。

公开(公告)号：US4551086A

公开(公告)日：1985-11-05

申请号：US512814

申请日：1983-07-11

Applicant: David L. Rawlings

Inventor： David L. Rawlings

IPC: A61F2/24 ,  A61M1/10 ,  B29C33/34 ,  B29C39/04 ,  B29C41/04 ,  B29L11/00 ,  B29D11/00

CPC classification number: B29C41/045 ,  B29C33/34 ,  B29L2011/0016 ,  B29L2031/7506 ,  Y10S425/808

Abstract: An apparatus and method for feeding molds to a device for centrifugally casting a plurality of axially symmetrical or asymmetrical articles such as lenses, disc valves, and the like on a continuous basis.

Abstract translation: 用于将模具供给到用于连续地离心铸造多个轴向对称或不对称物品（例如透镜，盘阀等）的装置的设备和方法。

公开(公告)号：US4469646A

公开(公告)日：1984-09-04

申请号：US406503

申请日：1982-08-09

Applicant: David L. Rawlings

Inventor： David L. Rawlings

IPC: B29C33/00 ,  B29D11/00

CPC classification number: B29D11/00057 ,  B29C33/0038 ,  B29L2011/0016 ,  B29L2031/7602

Abstract: Plastic contact lenses are formed in a casting process in which the required amount of lens-forming material is charged into a mold half, the mating lens half is inserted but only far enough to contact at least the surface of the lens-forming material. Next the inserted part is allowed to dwell or is slowly withdrawn for a sufficient distance to cause the liquid lens-forming material to move to the center of the two molding surfaces and to approximate a column between the two molding surfaces. The moveable mold portion is then quickly inserted into the mold pushing the lens-forming material uniformly outwardly and displacing any air between the two molding surfaces to form a contact lens devoid of air bubbles and entrained air.

Abstract translation: 塑料隐形眼镜在铸造工艺中形成，其中所需量的透镜形成材料被装入半模中，配合的透镜半部被插入，但是仅足够远以至少接触透镜形成材料的表面。 接下来，使插入的部分停留或慢慢地取出足够的距离，使液体透镜形成材料移动到两个模制表面的中心并近似两个模制表面之间的柱。 然后将可移动模具部分快速插入模具中，将透镜形成材料均匀地向外均匀地推出，并使两个模制表面之间的任何空气移位，形成没有气泡和夹带空气的隐形眼镜。